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Wong IG, Stark J, Ya V, Moye AL, Vazquez AB, Dang SM, Shehaj A, Rouhani MJ, Bronson R, Janes SM, Rowbotham SP, Paschini M, Franklin RA, Kim CF. Airway injury induces alveolar epithelial and mesenchymal responses mediated by macrophages. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.02.587596. [PMID: 38617297 PMCID: PMC11014629 DOI: 10.1101/2024.04.02.587596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Acute injury in the airways or the lung activates local progenitors and stimulates changes in cell-cell interactions to restore homeostasis, but it is not appreciated how more distant niches are impacted. We utilized mouse models of airway-specific epithelial injury to examine secondary tissue-wide alveolar, immune, and mesenchymal responses. Single-cell transcriptomics and in vivo validation revealed transient, tissue-wide proliferation of alveolar type 2 (AT2) progenitor cells after club cell-specific ablation. The AT2 cell proliferative response was reliant on alveolar macrophages (AMs) via upregulation of Spp1 which encodes the secreted factor Osteopontin. A previously uncharacterized mesenchymal population we termed Mesenchymal Airway/Adventitial Niche Cell 2 (MANC2) also exhibited dynamic changes in abundance and a pro-fibrotic transcriptional signature after club cell ablation in an AM-dependent manner. Overall, these results demonstrate that acute airway damage can trigger distal lung responses including altered cell-cell interactions that may contribute to potential vulnerabilities for further dysregulation and disease.
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Takeda Y, Takahashi M, Fuchikami JI, Nakamura H, Aoshiba K. Effect of roflumilast on airway remodeling in asthmatic mice exposed to or not exposed to cigarette smoke: Comparison with the effect of dexamethasone. Pulm Pharmacol Ther 2023; 79:102198. [PMID: 36690319 DOI: 10.1016/j.pupt.2023.102198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/09/2023] [Accepted: 01/19/2023] [Indexed: 01/21/2023]
Abstract
Cigarette smoking constitutes a risk factor for severe asthma, which is frequently linked to remodeling of the airways. Appropriate drug treatment for smokers with asthma is uncertain because many smokers with asthma are less sensitive to glucocorticoid treatment than non-smokers with asthma. The purpose of this study was to compare the anti-airway remodeling effects of dexamethasone (Dex) and roflumilast (Rof), a selective phosphodiesterases-4 inhibitor, in smoking and non-smoking mice with asthma. BALB/c mice were sensitized with ovalbumin (OVA) and then challenged with OVA for two weeks, either with or without concurrent exposure to cigarette smoke (CS). Dex (1 mg/kg body weight), Rof (5 mg/kg body weight), or vehicle alone was given orally to the mice once daily. To assess the histopathological effects of airway remodeling, lung tissue sections were obtained. Repeated OVA challenges resulted in fibrosis, goblet cell hyperplasia, and thickening of the airway but not the smooth muscle layer. The presence of CS did not have an impact on the degree of airway remodeling brought on by repeated OVA challenges. In mice repeatedly exposed to OVA either with or without CS, Dex treatment reduced the remodeling alterations. In these mice group, the Rof Treatment had a less significant impact than the Dex treatment. Dex was still more effective than Rof at reducing airway remodeling in asthmatic smoking mice. According to the current study's findings, Dex effectively prevented airway remodeling in a two-week asthma model in mice exposed to CS or not. In contrast, we found that Rof had little to no inhibitory effect of Rof on the airway in our mouse model of asthma, whether or not it had been exposed to CS. We were unable to find solid proof to support CS-induced steroid resistance to treat airway remodeling.
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Affiliation(s)
- Yukihisa Takeda
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami-machi, Inashiki-gun, Ibaraki, 300-0395, Japan.
| | - Maki Takahashi
- CMIC Pharma Science Co., Ltd., Bioresearch Center, 10221 Kobuchisawa-cho, Hokuto-shi, Yamanashi, 408-0044, Japan.
| | - Jun-Ichi Fuchikami
- CMIC Pharma Science Co., Ltd., Bioresearch Center, 10221 Kobuchisawa-cho, Hokuto-shi, Yamanashi, 408-0044, Japan.
| | - Hiroyuki Nakamura
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami-machi, Inashiki-gun, Ibaraki, 300-0395, Japan.
| | - Kazutetsu Aoshiba
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami-machi, Inashiki-gun, Ibaraki, 300-0395, Japan.
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Liu D, Xu C, Jiang L, Zhu X. Pulmonary endogenous progenitor stem cell subpopulation: Physiology, pathogenesis, and progress. JOURNAL OF INTENSIVE MEDICINE 2023; 3:38-51. [PMID: 36789358 PMCID: PMC9924023 DOI: 10.1016/j.jointm.2022.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/09/2022] [Accepted: 08/13/2022] [Indexed: 06/18/2023]
Abstract
Lungs are structurally and functionally complex organs consisting of diverse cell types from the proximal to distal axis. They have direct contact with the external environment and are constantly at risk of various injuries. Capable to proliferate and differentiate, pulmonary endogenous progenitor stem cells contribute to the maintenance of lung structure and function both under homeostasis and following injuries. Discovering candidate pulmonary endogenous progenitor stem cell types and underlying regenerative mechanisms provide insights into therapeutic strategy development for lung diseases. In this review, we reveal their compositions, roles in lung disease pathogenesis and injury repair, and the underlying mechanisms. We further underline the advanced progress in research approach and potential therapy for lung regeneration. We also demonstrate the feasibility and prospects of pulmonary endogenous stem cell transplantation for lung disease treatment.
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Affiliation(s)
- Di Liu
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Chufan Xu
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Lai Jiang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Xiaoyan Zhu
- Department of Physiology, Navy Medical University, 800 Xiangyin Road, Shanghai 200433, China
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McGraw MD, Yee M, Kim SY, Dylag AM, Lawrence BP, O'Reilly MA. Diacetyl inhalation impairs airway epithelial repair in mice infected with influenza A virus. Am J Physiol Lung Cell Mol Physiol 2022; 323:L578-L592. [PMID: 36068185 PMCID: PMC9639765 DOI: 10.1152/ajplung.00124.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 08/12/2022] [Accepted: 08/29/2022] [Indexed: 01/11/2023] Open
Abstract
Bronchiolitis obliterans (BO) is a debilitating disease of the small airways that can develop following exposure to toxic chemicals as well as respiratory tract infections. BO development is strongly associated with diacetyl (DA) inhalation exposures at occupationally relevant concentrations or severe influenza A viral (IAV) infections. However, it remains unclear whether lower dose exposures or more mild IAV infections can result in similar pathology. In the current work, we combined these two common environmental exposures, DA and IAV, to test whether shorter DA exposures followed by sublethal IAV infection would result in similar airways disease. Adult mice exposed to DA vapors 1 h/day for 5 consecutive days followed by infection with the airway-tropic IAV H3N2 (HKx31) resulted in increased mortality, increased bronchoalveolar lavage (BAL) neutrophil percentage, mixed obstruction and restriction by lung function, and subsequent airway remodeling. Exposure to DA or IAV alone failed to result in significant pathology, whereas mice exposed to DA + IAV showed increased α-smooth muscle actin (αSMA) and epithelial cells coexpressing the basal cell marker keratin 5 (KRT5) with the club cell marker SCGB1A1. To test whether DA exposure impairs epithelial repair after IAV infection, mice were infected first with IAV and then exposed to DA during airway epithelial repair. Mice exposed to IAV + DA developed similar airway remodeling with increased subepithelial αSMA and epithelial cells coexpressing KRT5 and SCGB1A1. Our findings reveal an underappreciated concept that common environmental insults while seemingly harmless by themselves can have catastrophic implications on lung function and long-term respiratory health when combined.
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Affiliation(s)
- Matthew D McGraw
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York
| | - Min Yee
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - So-Young Kim
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - Andrew M Dylag
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - B Paige Lawrence
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York
| | - Michael A O'Reilly
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York
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Bertho A, Dos Santos M, Braga-Cohen S, Buard V, Paget V, Guipaud O, Tarlet G, Milliat F, François A. Preclinical Model of Stereotactic Ablative Lung Irradiation Using Arc Delivery in the Mouse: Is Fractionation Worthwhile? Front Med (Lausanne) 2022; 8:794324. [PMID: 35004768 PMCID: PMC8739220 DOI: 10.3389/fmed.2021.794324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/07/2021] [Indexed: 11/23/2022] Open
Abstract
Lung stereotactic body radiation therapy is characterized by a reduction in target volumes and the use of severely hypofractionated schedules. Preclinical modeling became possible thanks to rodent-dedicated irradiation devices allowing accurate beam collimation and focal lung exposure. Given that a great majority of publications use single dose exposures, the question we asked in this study was as follows: in incremented preclinical models, is it worth using fractionated protocols or should we continue focusing solely on volume limitation? The left lungs of C57BL/6JRj mice were exposed to ionizing radiation using arc therapy and 3 × 3 mm beam collimation. Three-fraction schedules delivered over a period of 1 week were used with 20, 28, 40, and 50 Gy doses per fraction. Lung tissue opacification, global histological damage and the numbers of type II pneumocytes and club cells were assessed 6 months post-exposure, together with the gene expression of several lung cells and inflammation markers. Only the administration of 3 × 40 Gy or 3 × 50 Gy generated focal lung fibrosis after 6 months, with tissue opacification visible by cone beam computed tomography, tissue scarring and consolidation, decreased club cell numbers and a reactive increase in the number of type II pneumocytes. A fractionation schedule using an arc-therapy-delivered three fractions/1 week regimen with 3 × 3 mm beam requires 40 Gy per fraction for lung fibrosis to develop within 6 months, a reasonable time lapse given the mouse lifespan. A comparison with previously published laboratory data suggests that, in this focal lung irradiation configuration, administering a Biological Effective Dose ≥ 1000 Gy should be recommended to obtain lung fibrosis within 6 months. The need for such a high dose per fraction challenges the appropriateness of using preclinical highly focused fractionation schedules in mice.
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Affiliation(s)
- Annaïg Bertho
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Morgane Dos Santos
- Laboratory of Radiobiology of Accidental Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Sarah Braga-Cohen
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Valérie Buard
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Vincent Paget
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Olivier Guipaud
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Georges Tarlet
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Fabien Milliat
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
| | - Agnès François
- Laboratory of Radiobiology of Medical Exposures, Institute for Radioprotection and Nuclear Safety (IRSN), Research Department in Radiobiology and Regenerative Medicine, Fontenay-aux-Roses, France
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Zhou S, Zhu Q, Liu H, Jiang S, Zhang X, Peng C, Yang G, Li J, Cheng L, Zhong R, Zeng Q, Miao X, Lu Q. Associations of polycyclic aromatic hydrocarbons exposure and its interaction with XRCC1 genetic polymorphism with lung cancer: A case-control study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:118077. [PMID: 34523522 DOI: 10.1016/j.envpol.2021.118077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/27/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
Humans are extensively exposed to polycyclic aromatic hydrocarbons (PAHs) daily via multiple pathways. Epidemiological studies have demonstrated that occupational exposure to PAHs increases the risk of lung cancer, but related studies in the general population are limited. Hence, we conducted a case-control study among the Chinese general population to investigate the associations between PAHs exposure and lung cancer risk and analyze the modifications of genetic polymorphisms in DNA repair genes. In this study, we enrolled 122 lung cancer cases and 244 healthy controls in Wuhan, China. Urinary PAHs metabolites were determined by gas chromatography-mass spectrometry, and rs25487 in X-ray repair cross-complementation 1 (XRCC1) gene was genotyped by the Agena Bioscience MassARRAY System. Then, multivariable logistic regression models were performed to estimate the potential associations. We found that urinary hydroxynaphthalene (OH-Nap), hydroxyphenanthrene (OH-Phe) and the sum of hydroxy PAHs (∑OH-PAHs) levels were significantly higher in lung cancer cases than those in controls. After adjusting for gender, age, BMI, smoking status, smoking pack-years, drinking status and family history, urinary ∑OH-Nap and ∑OH-Phe levels were positively associated with lung cancer risk, with dose-response relationships. Compared with those in the lowest tertiles, individuals in the highest tertiles of ∑OH-Nap and ∑OH-Phe had a 2.13-fold (95% CI: 1.10, 4.09) and 2.45-fold (95% CI: 1.23, 4.87) increased risk of lung cancer, respectively. Effects of gender, age, smoking status and smoking pack-years on the associations of PAHs exposure with lung cancer risk were shown in the subgroup analysis. Furthermore, associations of urinary ∑OH-Nap and ∑OH-PAHs levels with lung cancer risk were modified by XRCC1 rs25487 (Pinteraction ≤ 0.025), and were more pronounced in wild-types of rs25487. These findings suggest that environmental exposure to naphthalene and phenanthrene is associated with increased lung cancer risk, and polymorphism of XRCC1 rs25487 might modify the naphthalene exposure-related lung cancer effect.
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Affiliation(s)
- Shuang Zhou
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Qiuqi Zhu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Huimin Liu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Shunli Jiang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China; Key Laboratory of Occupational Health and Environmental Medicine, Department of Public Health, Jining Medical University, 133 Hehua Road, Jining, Shandong, 272067, China
| | - Xu Zhang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Cheng Peng
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Guanlin Yang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Jiaoyuan Li
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Road, Wuhan, Hubei, 430030, China
| | - Liming Cheng
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Road, Wuhan, Hubei, 430030, China
| | - Rong Zhong
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Qiang Zeng
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Xiaoping Miao
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China
| | - Qing Lu
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei, 430030, China.
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7
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Bertho A, Dos Santos M, Buard V, Paget V, Guipaud O, Tarlet G, Milliat F, François A. Preclinical Model of Stereotactic Ablative Lung Irradiation Using Arc Delivery in the Mouse: Effect of Beam Size Changes and Dose Effect at Constant Collimation. Int J Radiat Oncol Biol Phys 2020; 107:548-562. [PMID: 32278852 DOI: 10.1016/j.ijrobp.2020.03.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 03/09/2020] [Accepted: 03/16/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE Stereotactic body radiation therapy is a therapeutic option offered to high surgical risk patients with lung cancer. Focal lung irradiation in mice is a new preclinical model to help understand the development of lung damage in this context. Here we developed a mouse model of lung stereotactic therapy using arc delivery and monitored the development of lung damage while varying the beam size and dose delivered. METHODS AND MATERIALS C57BL/6JRj mice were exposed to 90 Gy focal irradiation on the left lung using 1-mm diameter, 3 × 3 mm2, 7 × 7 mm2, or 10 × 10 mm2 beam collimation for beam size effect and using 3 × 3 mm2 beam collimation delivering 20 to 120 Gy for dose effect. Long-term lung damage was monitored with micro-computed tomography imaging with anatomopathologic and gene expression measurements in the injured patch and the ipsilateral and contralateral lungs. RESULTS Both 1-mm diameter and 3 × 3 mm2 beam collimation allow long-term studies, but only 3-mm beam collimation generates lung fibrosis when delivering 90 Gy. Dose-effect studies with constant 3-mm beam collimation revealed a dose of 60 Gy as the minimum to obtain lung fibrosis 6 months postexposure. Lung fibrosis development was associated with club cell depletion and increased type II pneumocyte numbers. Lung injury developed with ipsilateral and contralateral consequences such as parenchymal thickening and gene expression modifications. CONCLUSIONS Arc therapy allows long-term studies and dose escalation without lethality. In our dose-delivery conditions, dose-effect studies revealed that 3 × 3 mm2 beam collimation to a minimum single dose of 60 Gy enables preclinical models for the assessment of lung injury within a 6-month period. This model of lung tissue fibrosis in a time length compatible with mouse life span may offer good prospects for future mechanistic studies.
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Affiliation(s)
- Annaïg Bertho
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Morgane Dos Santos
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Accidentelles, Fontenay-aux-Roses, France
| | - Valérie Buard
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Vincent Paget
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Olivier Guipaud
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Georges Tarlet
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Fabien Milliat
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France
| | - Agnès François
- Institut de Radioprotection et de Sûreté Nucléaire, Service de Recherche en Radiobiologie et en Médecine régénérative, Laboratoire de Radiobiologie des expositions Médicales, Fontenay-aux-Roses, France.
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8
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Wang S, Bai Y, Deng Q, Chen Z, Dai J, Li X, Zhang W, Zhang X, He M, Wu T, Guo H. Polycyclic aromatic hydrocarbons exposure and lung function decline among coke-oven workers: A four-year follow-up study. ENVIRONMENTAL RESEARCH 2016; 150:14-22. [PMID: 27235571 DOI: 10.1016/j.envres.2016.05.025] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 05/05/2016] [Accepted: 05/17/2016] [Indexed: 05/22/2023]
Abstract
OBJECTIVES This study aimed to investigate quantitative relationships of urinary PAH metabolites with lung function declines among coke-oven workers. METHODS We performed a prospective investigation involving 1243 workers with follow-up periods from 2010 to 2014. Their lung function measurements, including forced vital capacity (FVC), forced expiratory volume in one second (FEV1), the percentage of predicted FVC (FVC%) and FEV1 (FEV1%), FEV1/FVC ratio, and forced expiratory flow between 25% and 75% of vital capacity (FEF25-75), were detected in both baseline (2010) and follow-up study (2014). We also detected the urinary concentrations of 12 PAH metabolites in the baseline study. The relationships between the baseline urinary PAH metabolites and 4-year lung function declines were analyzed by multivariate linear regressions, with adjustment for potential confounders. RESULTS We found that the baseline concentrations of urinary 1-hydroxynaphthalene (1-OHNa), 2-OHNa, 2-hydroxyfluorene (2-OHFlu), 9-OHFlu, 1-hydroxyphenanthrene (1-OHPh), 2-OHPh, and ΣOH-PAHs were significantly associated with accelerated decline in FEV1/FVC [all β>0 and false discovery rate (FDR) P<0.05]. Additionally, the baseline levels of urinary 1-OHNa, 1-OHPh, 2-OHPh, 9-OHPh, 1-hydroxypyrene (1-OHP), and ΣOH-PAHs were associated with significantly deeper decline in FEF25-75 (all β>0 and FDR P<0.10). When using backward selection to adjustment for 10 urinary PAH metabolites, the most significant determiner for FEV1/FVC decline was 1-OHNa among nonsmokers and 9-OHFlu among smokers, and the significant determiner for FEF25-75 decline was 9-OHPh among nonsmokers and 1-OHP among smokers. CONCLUSIONS This longitudinal study revealed that higher baseline exposure levels of PAHs could lead to greater decline in lung function over a 4-year follow-up.
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Affiliation(s)
- Suhan Wang
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yansen Bai
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qifei Deng
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhuowang Chen
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Juanxiu Dai
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoliang Li
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wangzhen Zhang
- Institute of Industrial Health, Wuhan Iron & Steel (group) Corporation, Wuhan 430070, China
| | - Xiaomin Zhang
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Meian He
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Tangchun Wu
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Huan Guo
- Department of Occupational and Environmental Health and Ministry of Education Key Lab for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Watanabe O, Tsuji T, Kikuchi R, Itoh M, Nakamura H, Aoshiba K. Little evidence for epithelial-mesenchymal transition in a murine model of airway fibrosis induced by repeated naphthalene exposure. ACTA ACUST UNITED AC 2016; 68:517-520. [PMID: 27498952 DOI: 10.1016/j.etp.2016.07.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 07/12/2016] [Accepted: 07/29/2016] [Indexed: 11/25/2022]
Abstract
Recent evidence suggests that epithelial-mesenchymal transition (EMT) is involved in the pathogenesis of airway obstructive diseases, such as chronic obstructive pulmonary disease, asthma and bronchiolitis obliterans syndrome after lung transplantation. However, whether EMT occurs in an experimental model of airway fibrosis is not well known. We explored evidence of EMT in a murine model of airway fibrosis induced by repeated exposure to naphthalene. Mice were administered intraperitoneal injections of naphthalene or corn oil vehicle once weekly for 14 consecutive weeks. The animals were sacrificed 5days after the final injection of naphthalene or corn oil vehicle. EMT was evaluated in lung tissue sections using immunohistochemistry and immunofluorescence. Repeated naphthalene exposure induced loss of club cells, hyperplasia of epithelial cells and peribronchial fibrosis. However, we did not find any loss of E-cadherin expression or any acquisition of vimentin, S100A4 or αSMA in epithelial cells in control or naphthalene-exposed mice. These results suggest that EMT does not contribute significantly to naphthalene-induced airway fibrosis in mice.
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Affiliation(s)
- Osamu Watanabe
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami-machi, Inashiki-gun, Ibaraki 300-0395, Japan.
| | - Takao Tsuji
- Respiratory Medicine, Institute of Geriatrics Tokyo Women's Medical University, 2-15-1 Shibuya, Shibuya-ku, Tokyo 150-0002, Japan.
| | - Ryota Kikuchi
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami-machi, Inashiki-gun, Ibaraki 300-0395, Japan.
| | - Masayuki Itoh
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami-machi, Inashiki-gun, Ibaraki 300-0395, Japan.
| | - Hiroyuki Nakamura
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami-machi, Inashiki-gun, Ibaraki 300-0395, Japan.
| | - Kazutetsu Aoshiba
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami-machi, Inashiki-gun, Ibaraki 300-0395, Japan.
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Zhang F, Zhang Y, Wang K, Liu G, Yang M, Zhao Z, Li S, Cai J, Cao J. Protective effect of diallyl trisulfide against naphthalene-induced oxidative stress and inflammatory damage in mice. Int J Immunopathol Pharmacol 2016; 29:205-16. [PMID: 26813860 DOI: 10.1177/0394632015627160] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 12/01/2015] [Indexed: 12/22/2022] Open
Abstract
The aim of this study was to investigate the possible protective effects of diallyl trisulfide (DATS) against naphthalene-induced oxidative and inflammatory damage in the livers and lungs of mice. Elevated serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels showed significant hepatic damage after the challenge with 100 mg/kg naphthalene. Hepatic malondialdehyde (MDA) contents and the activity of myeloperoxidase (MPO) increased significantly, accompanying a decrease in the hepatic activity of total superoxide dismutase (SOD) and glutathione (GSH) levels after the naphthalene damage. In addition, the serum levels of nitric oxide (NO), tumor necrosis factor α (TNF-α), and interleukin 8 (IL-8) increased significantly in the groups damaged with naphthalene. The main parameters related to oxidative stress and inflammatory responses in the lungs, including the NO, MPO, and GSH contents, were determined, and the histopathological and immunohistochemical changes in the lung and liver tissues were also observed. In the DATS-treated groups, all of the oxidative and inflammatory damage in the serum, liver, and lung tissues were significantly prevented.
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Affiliation(s)
- Fang Zhang
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Yongchun Zhang
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, Shandong, PR China
| | - Kaiming Wang
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Guangpu Liu
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Min Yang
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Zhongxi Zhao
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China Jiangsu Shengshi Kangde Biotech Corporation, Lianyungang, Jiangsu, China
| | - Shanzhong Li
- Jiangsu Shengshi Kangde Biotech Corporation, Lianyungang, Jiangsu, China
| | - Jianhua Cai
- Jiangsu Shengshi Kangde Biotech Corporation, Lianyungang, Jiangsu, China
| | - Jimin Cao
- Jiangsu Shengshi Kangde Biotech Corporation, Lianyungang, Jiangsu, China
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11
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Diallyl trisulfide inhibits naphthalene-induced oxidative injury and the production of inflammatory responses in A549 cells and mice. Int Immunopharmacol 2015; 29:326-333. [DOI: 10.1016/j.intimp.2015.10.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 10/20/2015] [Accepted: 10/29/2015] [Indexed: 12/24/2022]
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12
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Cummings KJ, Kreiss K. Occupational and environmental bronchiolar disorders. Semin Respir Crit Care Med 2015; 36:366-78. [PMID: 26024345 DOI: 10.1055/s-0035-1549452] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Occupational and environmental causes of bronchiolar disorders are recognized on the basis of case reports, case series, and, less commonly, epidemiologic investigations. Pathology may be limited to the bronchioles or also involve other components of the respiratory tract, including the alveoli. A range of clinical, functional, and radiographic findings, including symptomatic disease lacking abnormalities on noninvasive testing, poses a diagnostic challenge and highlights the value of surgical biopsy. Disease clusters in workplaces and communities have identified new etiologies, drawn attention to indolent disease that may otherwise have been categorized as idiopathic, and expanded the spectrum of histopathologic responses to an exposure. More sensitive noninvasive diagnostic tools, evidence-based therapies, and ongoing epidemiologic investigation of at-risk populations are needed to identify, treat, and prevent exposure-related bronchiolar disorders.
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Affiliation(s)
- Kristin J Cummings
- Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Kathleen Kreiss
- Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
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Tsuji T, Itoh M, Kikuchi R, Uruma T, Watanabe H, Yamaguchi K, Nakamura H, Aoshiba K. Repeated exposure to 5-bromo-2'-deoxyuridine causes decreased proliferation and low-grade inflammation in the lungs of mice. EXPERIMENTAL AND TOXICOLOGIC PATHOLOGY : OFFICIAL JOURNAL OF THE GESELLSCHAFT FUR TOXIKOLOGISCHE PATHOLOGIE 2015; 67:355-60. [PMID: 25911309 DOI: 10.1016/j.etp.2015.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 04/02/2015] [Indexed: 02/07/2023]
Abstract
Incorporation of 5-bromo-2'-deoxyuridine (BrdU) into proliferating cells has been used to label dividing cells in many tissues. Although BrdU has been shown to be genotoxic, teratogenic and mutagenic, such adverse effects have largely been ignored by researchers. We determined whether long-term BrdU exposure causes any histopathological changes in the lungs of mice. Eight-week-old male C57/BL6J mice were administered BrdU by intraperitoneal injection on 3 consecutive days of each week for 14 weeks. While no obvious structural changes such as tissue damage, fibrosis, emphysema, airway remodeling, vascular thickening or tumorigenesis were noted, a moderate degree of macrophage infiltration was observed in the airways and lung parenchyma in the lungs of the mice exposed repeatedly to BrdU (BrdU-exposed mice). The proliferative activities of the airway and alveolar epithelial and mesenchymal cells were reduced in the BrdU-exposed mice, although the numbers of these cells in the lungs were maintained. Double immunofluorescence study of the lungs of the BrdU-exposed mice showed overexpression of IL-6 in the airway epithelial and alveolar wall cells, some of which were also double-positive for BrdU. These results indicate that long-term exposure to BrdU inhibits cell proliferation and induces low-grade inflammation in the lungs of mice. Our findings underscore the need for caution in the interpretation of studies that involve long-term exposure to BrdU.
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Affiliation(s)
- Takao Tsuji
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Inashiki 300-0395, Ibaraki, Japan
| | - Masayuki Itoh
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Inashiki 300-0395, Ibaraki, Japan
| | - Ryota Kikuchi
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Inashiki 300-0395, Ibaraki, Japan
| | - Tomonori Uruma
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Inashiki 300-0395, Ibaraki, Japan
| | - Hidehiro Watanabe
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Inashiki 300-0395, Ibaraki, Japan
| | - Kazuhiro Yamaguchi
- Comprehensive and Internal Medicine, Tokyo Women's Medical University Medical Center East, 2-1-10 Nishi-ogu, Arakawa-ku, Tokyo 116-8567, Japan
| | - Hiroyuki Nakamura
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Inashiki 300-0395, Ibaraki, Japan
| | - Kazutetsu Aoshiba
- Department of Respiratory Medicine, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuou, Ami, Inashiki 300-0395, Ibaraki, Japan.
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